My G9x has started to sometimes double-click when I left-click. It's sometimes quite annoying. I've had this mouse since I built this computer back in 2012 so it's been quite awhile. Overall, it is a good mouse but I initially thought it was quite small and thus uncomfortable. Then I got used to it. Note that I love the DeathAdder's shape but found out Razer stuff is not very reliable. Is this true? The other mouse I am looking at is the G502 but don't know how its shape/grip compares to the G9x and DeathAdder. FPS games are the main priority. If you're going to ask me what my grip is, it probably leans more towards a "palm grip." Edit: I am also looking at the G403 wired version. Seems like it is the best replacement for the MX518 which I also liked a lot.